diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 7c9955fc4..481b039c8 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 7c9955fc47bdb9fdddbe04bab74200ba5a363d87
+Subproject commit 481b039c8032c80cbfda43f6da7001a7cf6df86b